Matcha can taste grainy when the powder is clumped, not mixed thoroughly, too concentrated or ground less finely.
A little sediment is normal because matcha is suspended in water rather than fully dissolved, but the drink should not feel sandy or full of lumps.
Matcha Does Not Completely Dissolve
Matcha is made from finely ground tea leaves. Unlike sugar or instant coffee, the powder does not disappear into the liquid. Whisking spreads tiny particles evenly through the drink, but they can slowly settle if the cup sits for a couple of minutes.
A light layer of sediment at the bottom is normal. Large clumps, a sandy texture, or noticeably gritty particles usually point to a preparation or quality issue.
You Did Not Sift the Matcha
Fine matcha naturally forms soft clumps inside the package. Whisking can break up some of them, but dry pockets may survive and reach the bottom of your cup.
Push the powder through a fine mesh sifter before adding water. This separates compressed clumps and makes it easier to create a smooth suspension.
You Added Matcha Directly to Milk
Cold milk does not wet matcha as easily as warm water, especially when the powder has not been sifted. Adding dry matcha straight into a full glass of milk often leaves small floating or sinking clumps.
Start by whisking the matcha with a small amount of warm water until smooth. Then add the milk. This is the most reliable method for both hot and iced lattes.
Your Matcha-to-Water Ratio Is Too Strong
Using a large amount of powder with only a splash of water creates a thick paste that can be difficult to disperse. It may taste chalky even after milk is added.
For most drinks, begin with 1 to 2 grams of matcha and about 60 to 80 millilitres of water. Adjust from there based on the size and strength of the final drink.
Read How Much Matcha Powder Should You Use? for a more detailed guide.
You Are Stirring Instead of Whisking
A spoon moves matcha around but may not create enough agitation to separate the powder evenly. Use a bamboo whisk, small kitchen whisk, or a handheld frother.
When using a bamboo matcha whisk, move it quickly back and forth rather than stirring in slow circles. The goal is to suspend the powder, not scrape it around the bottom of the bowl.
Your Water Is Too Cold
Matcha can be prepared cold, but warm water usually helps the powder disperse more easily. Use water around 70°C to 80°C when making the initial matcha base.
Avoid boiling water. It will not solve graininess and can make the matcha taste more bitter.
For bitterness solutions, read Why Is Your Matcha Tasting Bitter?
The Matcha May Be Coarsely Ground
If the drink still feels sandy after sifting and whisking correctly, the powder itself may be the issue. Properly milled matcha should feel extremely fine rather than coarse.
Some inexpensive green tea powders are sold as matcha even though they are not ground finely enough for a smooth drink. They may work better in baking or smoothies than in matcha prepared with water.
